Chronic otitis media and tympanoplasty.
D002781:Cholesteatoma / Q000601:surgery; D002908:Chronic Disease; D006309:Hearing; D006801:Humans; D008417:Mastoiditis / Q000601:surgery; D010033:Otitis Media / Q000601:surgery*; D011183:Postoperative Complications / Q000517:prevention & control; D014433:Tympanoplasty